linux-kernel - Re: [PATCH] Fix broken debug output reserve_region_with

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Date:	Fri, 17 Oct 2008 15:05:10 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Roland Dreier <rdreier@...co.com>, Geert.Uytterhoeven@...ycom.com,
	hpa@...or.com, linux-kernel@...r.kernel.org, mingo@...e.hu,
	yhlu.kernel@...il.com, David Miller <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] Fix broken debug output reserve_region_with_split()

On Thu, 2008-10-16 at 20:49 -0700, Linus Torvalds wrote:
> 
> On Fri, 17 Oct 2008, Benjamin Herrenschmidt wrote:
> > 
> > Ok, I'll wait for more comments before a respin to :-) I'm mostly
> > wondering whether to use fixed sized format rather than the current
> > variable size (and pad with zeros).
> 
> Sadly, I think that gcc warns if we were to support %08pR, so we can't 
> pass down flags.
> 
> That said, I don't much like SPECIAL in the flags. We never do that thing. 
> Doing a git grep for some range printouts, we tend to do things like

I hesitated, but DaveM convinced me if you get a range of IO ports such
as 138-139, do you know on a first look that it's hex ? :-)

> and the 04 would be parsed as flags, the same way we do %04x. And then if 
> you want the 0x, you can use %p#08R..

Shouldn't we be consistent and have resources always be printed using
the same format ?

Cheers,
Ben.


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